.main-layout {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 0 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 20px;
  font-weight: bold;
}

.user-info {
  font-size: 14px;
}

.tab-container {
  display: flex;
  background: white;
  border-bottom: 1px solid #e8e8e8;
  padding: 0 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

.tab-item {
  padding: 15px 30px;
  cursor: pointer;
  transition: all 0.3s;
  border-bottom: 2px solid transparent;
  color: #666;
  font-weight: 500;
}

.tab-item:hover {
  color: #667eea;
}

.tab-item.active {
  color: #667eea;
  border-bottom-color: #667eea;
}

.content {
  flex: 1;
  overflow-y: auto;
  background: #f5f5f5;
  padding: 20px;
  position: relative;
}

.tab-content {
  width: 100%;
  height: 100%;
}

